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HK: Fachverband Physik der Hadronen und Kerne

HK 60: Focus Session III: Multiquark and Molecular States

HK 60.3: Invited Talk

Thursday, March 14, 2024, 15:00–15:30, HBR 14: HS 1

Molecular and bound states searches with femtoscopy — •Valentina Mantovani Sarti — TUM Department of Physics, Garching, Germany

In the last years the correlation measurements at LHC, particularly performed in small colliding systems such as proton-proton collisions, proved to be a powerful complementary experimental tool to access the strong interaction in hadronic systems with strange and charm content. The QCD dynamics driving the underlying interaction in these sectors is characterized by a rich presence of inelastic channels which, depending on the coupling strengths, can give rise to several dynamically generated states. The nature and inner composition of such states strongly depends on the interplay between the different coupled-channels and experimental constraints on their properties are typically obtained from dedicated mass invariant studies widely performed at LHC and as well at electron-positron colliders. In this talk we will discuss how femtoscopy can contribute to the search and understanding of these molecular states. We will present the recent results obtained in the meson-baryon S=-2 sector for the Ξ(1620) and Ξ(1690) states with the measurements of ΛK- correlation. Latest results on the correlation of D mesons with light hadrons will be shown. Finally, future perspectives will also be presented on how to employ femtoscopy to shed light into the composition of heavy multi-quark states with the ALICE 3 dedicated experiment.

Keywords: femtoscopy; Bound and molecular states; strong interaction; strange hadrons; charm hadrons